CVE-2019-15845
ruby: NUL injection vulnerability of File.fnmatch and File.fnmatch?
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 mishandles path checking within File.fnmatch functions.
Ruby versiones hasta 2.4.7, versiones 2.5.x hasta 2.5.6 y versiones 2.6.x hasta 2.6.4, maneja inapropiadamente la comprobación de ruta dentro de las funciones File.fnmatch.
A flaw was discovered in Ruby in the way certain functions handled strings containing NULL bytes. Specifically, the built-in methods File.fnmatch and its alias File.fnmatch? did not properly handle path patterns containing the NULL byte. A remote attacker could exploit this flaw to make a Ruby script access unexpected files and to bypass intended file system access restrictions.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-08-30 CVE Reserved
- 2019-11-26 CVE Published
- 2024-08-05 CVE Updated
- 2024-11-04 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-41: Improper Resolution of Path Equivalence
CAPEC
References (11)
| URL | Tag | Source |
|---|---|---|
| https://hackerone.com/reports/449617 | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/11/msg00025.html | Mailing List |
|
| https://seclists.org/bugtraq/2019/Dec/31 | Mailing List |
|
| https://seclists.org/bugtraq/2019/Dec/32 | Mailing List |
|
| https://www.oracle.com/security-alerts/cpujan2020.html | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.html | 2020-08-24 | |
| https://security.gentoo.org/glsa/202003-06 | 2020-08-24 | |
| https://usn.ubuntu.com/4201-1 | 2020-08-24 | |
| https://www.debian.org/security/2019/dsa-4587 | 2020-08-24 | |
| https://access.redhat.com/security/cve/CVE-2019-15845 | 2022-02-21 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1789407 | 2022-02-21 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Ruby-lang Search vendor "Ruby-lang" | Ruby Search vendor "Ruby-lang" for product "Ruby" | >= 2.4.0 <= 2.4.7 Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.4.0 <= 2.4.7" | - |
Affected
| ||||||
| Ruby-lang Search vendor "Ruby-lang" | Ruby Search vendor "Ruby-lang" for product "Ruby" | >= 2.5.0 <= 2.5.6 Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.5.0 <= 2.5.6" | - |
Affected
| ||||||
| Ruby-lang Search vendor "Ruby-lang" | Ruby Search vendor "Ruby-lang" for product "Ruby" | >= 2.6.0 <= 2.6.4 Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.6.0 <= 2.6.4" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.10" | - |
Affected
| ||||||